Dpreview have a quite positive account on Dan Bracaglia's experience shooting with the D7500.
It is interesting to see how experiences differ on the use of Auto AF Fine Tune. I personally have had mostly very positive experience with it on the D5; only one of my fast AF-S lenses produced a result which was clearly not correct but it was easy to find the correct setting in practical shooting with that lens, and I've been very happy with the settings Auto AF Fine tune found for my other lenses (I do repeat the process several times to see how much variability there is and to find the mean). With the 70-200/2.8E FL and TC-20E III the Auto AF Fine tune didn't work at all (it gave an error message and I proceeded to fine tune that combination with earlier methods). I got great results with Auto AF Fine Tune with the same zoom lens and TC-14E III at 280mm. Maybe the maximum aperture of the lens has something to do with it.
Occasionally some users on forums have complained that auto AF Fine Tune doesn't work for them. In Dan Braglia's account on the D7500 he seemed happy with its performance on prime lenses (e.g. 85/1.8D). Anyway for me this has been a great feature which saved a lot of time when starting to use the D5.
Bracaglia seems to like Nikon's 3D Tracking and goes on and on about it in the article. I guess it greatly depends on the subject matter, how well it works; in my experience it doesn't work well in situations where the main subject being tracked is temporarily occluded by another person or when the subject turns away from the camera; in those cases the tracking can slip from the target. However, it is easy enough to restart tracking. Otherwise it seems to work well and has reached a level of maturity where it has become a reasonable tool to use when it fits the situation.
There appears to be tap to AF in the live view now, in the D7500. I wonder how precise it is and if it finds the closest face to focus on if face priority AF is on.